File: cgp-trivial-phi-node.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (33 lines) | stat: -rw-r--r-- 936 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
; Checks that case when GEP is bound to trivial PHI node is correctly handled.
; RUN: opt %s -mtriple=aarch64-linux-gnu -codegenprepare -S -o - | FileCheck %s

; CHECK:      define void @crash([65536 x i32]** %s, i32 %n) {
; CHECK-NEXT: entry:
; CHECK-NEXT:   %struct = load [65536 x i32]*, [65536 x i32]** %s
; CHECK-NEXT:   %gep0 = getelementptr [65536 x i32], [65536 x i32]* %struct, i64 0, i32 20000
; CHECK-NEXT:   store i32 %n, i32* %gep0
; CHECK-NEXT:   ret void
; CHECK-NEXT: }

define void @crash([65536 x i32]** %s, i32 %n) {
entry:
  %struct = load [65536 x i32]*, [65536 x i32]** %s
  %cmp = icmp slt i32 0, %n
  br i1 %cmp, label %baz, label %bar
baz:
  br label %bar

foo:
  %gep0 = getelementptr [65536 x i32], [65536 x i32]* %phi2, i64 0, i32 20000
  br label %st

st:
  store i32 %n, i32* %gep0
  br label %out

bar:
  %phi2 = phi [65536 x i32]* [ %struct, %baz ], [ %struct, %entry ]
  br label %foo
out:
  ret void
}